An adjusting seat includes a base, an adjustment unit and a worm gear. The adjusting seat has two supporting portions. The adjustment unit includes an assembly portion, two extending portions and a teeth portion. The assembly portion includes a first surface and a second surface. The two extension portions protrude from the first surface of the assembly portion so as to form an accommodation space with the assembly portion. The two extension portions are pivoted on the two support portions, respectively. The teeth portion is located on the second surface. The worm gear is pivoted on the base and meshed with the teeth portion, when the worm gear is rotated relative to the base. The teeth portion is rotated according to a rotation of the worm gear so as to drive the adjustment unit to simultaneously rotate relative to the base.
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13. An adjusting seat, comprising:
a base having an accommodating room, a top surface, a through hole and two supporting portions, wherein the accommodating room extends from the top surface, and the through hole is on the top surface and located at a side of the accommodating room;
an adjustment unit pivotally disposed on the base, the adjustment unit comprising a teeth portion located in the accommodating room; and
a worm gear pivoted on the base and meshed with the teeth portion, wherein the through hole exposes the worm gear, and an axis of the worm gear has an acute angle with respect to a normal line of the top surface of the base; when the worm gear is rotated relative to the base, the teeth portion is rotated according to a rotation of the worm gear so as to drive the adjustment unit to simultaneously rotate relative to the base.
1. An adjusting seat, comprising:
a base with two supporting portions;
an adjustment unit comprising an assembly portion, two extension portions and a teeth portion, the assembly portion comprising a first surface and a second surface which are opposite to each other, the two extension portions protruding from the first surface of the assembly portion in a direction from the second surface to the first surface so as to form an accommodation space with the assembly portion, the two extension portions pivoted on the two support portions, respectively, and the teeth portion located on the second surface; and
a worm gear pivoted on the base and meshed with the teeth portion, when the worm gear is rotated relative to the base, the teeth portion is rotated according to a rotation of the worm gear so as to drive the adjustment unit to simultaneously rotate relative to the base.
2. The adjusting seat according to
3. The adjusting seat according to
5. The adjusting seat according to
6. The adjusting seat according to
7. The adjusting seat according to
8. A photographing device, comprising:
the adjusting seat of
an image sensor assembled in the accommodation space of the adjusting seat.
9. The photographing device according to
10. The photographing device according to
11. The photographing device according to
12. The photographing device according to
14. The adjusting seat according to
15. The adjusting seat according to
17. The adjusting seat according to
18. The adjusting seat according to
19. The adjusting seat according to
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This non-provisional application claims priority under 35 U.S.C. §119(a) on Patent Application No(s). 103101440 filed in Taiwan, R.O.C. on Jan. 15, 2014, the entire contents of which are hereby incorporated by reference.
Technical Field
The disclosure relates to a photographing device, in particularly to a photographing device with an adjusting seat.
Related Art
Surveillance cameras are widely used in different kinds of places, such as industry plants, dormitories, stores, entrances of buildings or communities, tunnels and other places less travelled. The surveillance cameras can capture and record certain occasions for reviewing and using as evidence in the future. Therefore, the surveillance cameras enhance public security in order to avoid crime.
Based on their shapes, the surveillance cameras are divided into bullet-type surveillance cameras and dome-type surveillance cameras. Because the dome-type surveillance camera is smaller in size, it can be disposed in some hidden positions in certain areas, such as outdoors or some places less travelled. Hence, people are not aware of the disposition of the dome-type surveillance camera. Moreover, in order to adjust the field of view of surveillance, an adjusting seat with a manually adjusting function is assembled on the dome-type surveillance camera for conveniently adjusting the tilt angles of the dome-type surveillance camera. Though having an advantage of adjusting the tilt angle, the total volume of this dome-type surveillance camera is significantly increased due to the addition of the adjusting seat. Thus, this kind of the dome-type surveillance camera cannot be disposed in some hidden positions because it is easy for people to see where it's located.
In short, it is a critical problem for manufacturers to develop a surveillance camera which is small in size as well as being able to adjust its angle.
An embodiment of the disclosure provides an adjusting seat, comprising a base, an adjustment unit and a worm gear. The base has two supporting portions. The adjustment unit comprises an assembly portion, two extending portions and a teeth portion. The assembly portion comprises a first surface and a second surface. The two extension portions protrude from the first surface of the assembly portion so as to form an accommodation space with the assembly portion. The two extension portions are pivoted on the two support portions, respectively. The teeth portion is located on the second surface. The worm gear is pivoted on the base and meshed with the teeth portion, when the worm gear is rotated relative to the base. The teeth portion is rotated according to a rotation of the worm gear so as to drive the adjustment unit to simultaneously rotate relative to the base.
Another embodiment of the disclosure provides a photographing device, comprising the foregoing adjusting seat and an image sensor assembled in the accommodation space of the adjusting seat.
The present invention will become more fully understood from the detailed description given hereinbelow and the accompanying drawings which are given by way of illustration only and thus are not limitative of the present invention and wherein:
In the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the disclosed embodiments. It will be apparent, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are schematically shown in order to simplify the drawings.
Please refer to
The adjusting seat 10 comprises a base 100, an adjustment unit 200 and a worm gear 300.
The base 100 comprises two support portions 110. Each support portion 110 has an axial hole 111. The base 100 has an accommodating room 101, a top surface 102 and a through hole 103. The accommodating room 101 extends from the top surface 102, and the through hole 103 is on the top surface 102 and located at a side of the accommodating room 101.
The adjustment unit 200 comprises an assembly portion 210, two extension portions 220 and a teeth portion 230. The assembly portion 210 comprises a first surface 211 and a second surface 212. The first surface 211 and the second surface 212 are opposite to each other. The two extension portions 220 protrude outwardly from the first surface 211 of the assembly portion 210, in a direction D from the second surface 212 to the first surface 211 so that the two extension portions 220 and the assembly portion 210 form an accommodation space 205 together. Each extension portion 220 comprises a protruding axle 221 and an indentation 222. The protruding axles 221 of the two extension portions 220 are pivoted in the axial holes 111 of the two support portions 110 so that the adjustment unit 200 is for rotating about the protruding axles 221 as a rotation axis and in relative to the base 100. The teeth portion 230 is located on the second surface 212, and the teeth portion 230 is a spur gear. Since the teeth portion 230 of the adjustment unit 200 is the spur gear, it is easy for manufacturers to manufacture and integrate all of the assembly portion 210, the two extension portions 220 and the teeth portion 230 into a single unit by injection molding, thereby miniaturizing the adjustment unit 200.
In addition, the disclosure is not limited to the foregoing two axial holes 111 of the support portion 110 matching with the two protruding axles 221 of extension portion 220. In other embodiment, each of the two extension portions 220 comprises an axial hole (not shown), each of the two support portions 110 comprises a protruding axle (not shown), and the two protruding axles are pivoted in the two axial holes, respectively.
The worm gear 300 is pivoted on the base 100 and meshes with the teeth portion 230. The through hole 103 exposes the worm gear 300. When the worm gear 300 rotates relative to the base 100, the teeth portion 230 is driven by the rotation of the worm gear 300 to rotate accordingly, which also simultaneously drives the adjustment unit 200 to rotate about the protruding axle 221 as a rotation axis and relative to the base 100. In this embodiment, the worm gear 300 slopes towards the adjustment unit 200, which means an axis A of the worm gear 300 and a normal line N of the first surface 211 form an acute angle θ therebetween. That is, the worm gear 300 is inclined. In another way to described the position of the worm gear 300, the axis A of the worm gear 300 has an acute angle θ′ with respect to a normal line N2 of the top surface 102 of the base 100. There is a difference between when the worm gear 300 slopes towards the adjustment unit 200 and when the worm gear 300 is vertically disposed on the adjustment unit 200. The difference is that when the worm gear 300 is vertically disposed on the adjustment unit 200, the contact point of the worm gear 300 and the teeth portion 230 is located at a lateral side between the first surface 211 and the second surface 212 of the assembly portion 210. Accordingly, the teeth portion 230 needs to extend to the lateral side between the first surface 211 and the second surface 212, which may increase the total volume of the adjustment unit 200. Therefore, in this embodiment, the worm gear 300 has an inclination to the adjustment unit 200 such that the contact point of the worm gear 300 and the teeth portion 230 is below the second surface 212 of the assembly portion 210. The teeth portion 230 is only needed to be located on the second surface 212, so the teeth portion 230 does not need to extend to the lateral side between the first surface 211 and the second surface 212, thereby reducing the total width and span of the adjustment unit 200.
The circuit board 20 and the image sensor 30 are disposed in the accommodation space 205. The circuit board 20 is affixed to the assembly portion 210, and the image sensor 30 is electrically connected to the circuit board 20.
Moreover, the worm gear 300 further comprises an adjustment portion 310, and the circuit board 20 further comprises a cut-out 22. The worm gears 300 passes through the cut-out 22 such that the adjustment portion 310 protrudes outwardly from the first surface 211 of the assembly portion 210 (as shown in
In this and some other embodiments, the adjustment unit 200 further comprises a blocking portion 240. The blocking portion 240 is located on an end of the teeth portion 230. The blocking portion 240 is for being pressed against the worm gear 300 in order to prevent the adjustment unit 200 form over rotation. When the adjustment unit 200 is over rotated to a certain degree (that is, rotates too much), the circuit board 20 may hit the worm gear 300 or the worm gear 300 may separate from the teeth portion 230 to lose transmission of force. Therefore, the disposition of blocking portion 240 can prevent the failure of the transmission of force.
The lens 40 is assembled on the image sensor 30, and the image sensor 30 is for sensing an image captured by the lens 40.
The light-permeable cover 50 is assembled on the base 100 of the adjusting seat 10 for covering the image sensor 30 and the lens 40. Thus, the light-permeable cover 50 can protect internal components (such as the lens 40, the image sensor 30 and the adjustment unit 200) from damage.
The lens cover 60 comprises two hooks 62. The two hooks 62 are detachably assembled on the two indentations 222. The lens cover 60 not only covers the lens 40 but also supports the two extension portions 220, which enhances the strength of the adjustment unit 200.
Please refer to
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According to the embodiment shown in
According to the adjusting seat and the photographing device using the same disclosed in the disclosure, the worm gear slopes to the adjustment unit 200. The contact point of the worm gear and the teeth portion is moved downward so the teeth portion does not need to extend to the lateral side of the assembly portion. Accordingly, the adjusting seat is miniaturized such that it is easy for the photographing device to be hidden in a desired place. Also, the control of the tilt angle is manual, so it is also convenient for the user to operate.
Moreover, the teeth portion is a spur gear, so the assembly portion, the two extension portions and the teeth portion can be manufactured and integrated into a single unit, which further reduces the total volume of the adjustment unit.
The foregoing description of the exemplary embodiments of the disclosure has been presented only for the purposes of illustration and description and is not intended to be exhaustive or to limit the disclosure to the precise forms disclosed. Many modifications and variations are possible in light of the above teaching.
Patent | Priority | Assignee | Title |
D948591, | Dec 17 2019 | PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD. | Lens for infrared radiation sensor |
Patent | Priority | Assignee | Title |
20030193588, |
Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Nov 25 2014 | HUANG, SHANG-YU | Vivotek Inc | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 034465 | /0326 | |
Dec 10 2014 | VIVOTEK INC. | (assignment on the face of the patent) | / |
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